| 摘要 |
PROBLEM TO BE SOLVED: To suppress rotational rigidity of a pile head and to ensure transfer performance of a horizontal force from a foundation to a pile.SOLUTION: In a joint structure for a head 10A of a ready-made pile 10 which is joined with a foundation 20 while being inserted into a precast concrete ring 30 integrated with the foundation 20, a reinforcing bar 34 is provided for integrating an outer circumference of the ring 30 and the foundation 20. Between a lower part of an inner circumference of the ring 30 and the head 10A, a gap is formed and a buffering material 40 is held which is shrunk by a compression force. At a side higher than the buffering material 40 between the ring 30 and the head 10A, a restraining part 50 is formed by filling a gap between the inner circumference of the ring 30 and the head 10A with concrete, such that the ring 30 restrains the head 10A in a horizontal direction. |
